647994087

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{615379}}^1$

素因数の和:615404

約数の個数: 20

約数和(自身を含む): 1042453720

約数和(自身を除く): 394459633

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 615379, 1846137, 5538411, 7999927, 16615233, 23999781, 49845699, 71999343, 215998029, 647994087]

約数ペア:

[(1, 647994087), (3, 215998029), (9, 71999343), (13, 49845699), (27, 23999781), (39, 16615233), (81, 7999927), (117, 5538411), (351, 1846137), (1053, 615379)]